<!DOCTYPE html>
<html>

<head>
  <meta charset="utf-8">
  <title>动物表格</title>
  <link href="minimal-table.css" rel="stylesheet" type="text/css">
</head>

<body>
  <h1>动物表格</h1>

  <table>
    <tr>
      <th colspan="2">动物</th>
    </tr>
    <tr>
      <th colspan="2">河马</th>
    </tr>
    <tr>
      <th rowspan="2">马</th>
      <td>母马</td>
    </tr>
    <tr>
      <td>种马</td>
    </tr>
    <tr>
      <th colspan="2">鳄鱼</th>
    </tr>
    <tr>
      <th rowspan="2">鸡</th>
      <td>母鸡</td>
    </tr>
    <tr>
      <td>雄鸡</td>
    </tr>
  </table>


</body>

</html>